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Cloud [144]
2 years ago
12

A rectangular pyramid has a height of 10 meters. The base measures 8 meters in length and 12 meters in width. Two different tria

ngular cross-sections are formed through the vertex and perpendicular to the base. What is the difference in the areas of the cross-sections? Enter your answer in the box.
I need the answer
Mathematics
1 answer:
Colt1911 [192]2 years ago
6 0

Answer:

The difference in the areas of the cross-sections is 20 m².

Step-by-step explanation:

^^^

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What is the area of this polygon?
elena55 [62]
A= 192 cm squared
Why?
17 x 10= 170
4 x 11= 44
44 divided by 2 =22
170+ 22= 192 cm squared
3 0
2 years ago
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D) Vivek is 30 years younger than his father. After 10 years their ages will be in the ratio 1:2. Find their present ages.​
tangare [24]

Answer:

I think Vivek is 20 and his father is 50

Because 30 + 30 equals 60 as he has to be half his age he'll be 30 but that's in 10 years time. you just subtract 30 and 60 by 10 and you'll get 20 and 50

6 0
3 years ago
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Consider a collection of envelopes consisting of 1 red envelope, 3 blue envelopes, 2 green envelopes, and 3 yellow envelopes if
nasty-shy [4]

Answer:

the probability that at least one envelope is a yellow envelope is 16/21

Step-by-step explanation:

The probability that at least one envelope is a yellow envelope is P(Y);

P(Y) = 1 - P(Y)'

P(Y)' is the probability that no envelope is a yellow envelope.

Given;

red envelope = 1

blue envelopes = 3

green envelopes = 2

yellow envelopes = 3

Total = 9

Number of non-yellow envelope = 9 -3 = 6

(6 envelope are not yellow)

P(Y)' = P1 × P2 × P3

Since there is no replacement;

P(Y)' = 6/9 × 5/8 × 4/7

P(Y)' = 5/21

From equation 1;

P(Y) = 1 - 5/21

P(Y) = 16/21

the probability that at least one envelope is a yellow envelope is 16/21.

8 0
3 years ago
44y + 321x = 0 biết x=30000
Katena32 [7]

Answer:

y= -240750/11

Step-by-step explanation:

44y + 321. 30000 = 0

44y = - 963000

y= -240750/11

6 0
3 years ago
PLEASE HELP!!!
amid [387]
For your answer you would get 1.40 dollars as your answer or B
4 0
3 years ago
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